Company Filing History:
3 out of 5 
1 out of 27 Years Active: 2005-2015
Title: The Innovations of Qingrong Han
Introduction
Qingrong Han is a prominent inventor based in Wuhan, China. He has made significant contributions to the field of optical fiber technology, holding a total of 4 patents. His work focuses on methods for manufacturing optical fiber preforms and single-mode fibers, which are essential components in modern telecommunications.
Latest Patents
One of his latest patents is titled "Methods for manufacturing optical fiber preform." This invention outlines a comprehensive method for creating an optical fiber preform, which includes several steps such as providing a lining tube, doping with various gases, and processing the lining tube into a solid core rod. The effective diameter of the optical fiber preform is designed to be between 95 and 205 mm.
Another notable patent is "Single-mode fiber and production method thereof." This invention describes a single-mode fiber that consists of a core, inner cladding, depressed cladding, and outer cladding, all made from pure silica glass. The core is specifically doped with germanium and fluorine, enhancing its performance characteristics. The fiber is engineered to have excellent bending resistance and mechanical properties, which contribute to its extended service lifetime.
Career Highlights
Qingrong Han has worked with notable companies in the optical fiber industry, including Yangtze Optical Fibre and Cable Company, Ltd. and Yangtze Optical Fibre and Cable Joint Stock Limited Company. His experience in these organizations has allowed him to refine his expertise in optical fiber technology and contribute to advancements in the field.
Collaborations
Throughout his career, Qingrong Han has collaborated with talented individuals such as Jie Luo and Chen Yang. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Qingrong Han's contributions to optical fiber technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in telecommunications and optical systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.